Patents by Inventor Melvin Chervitz

Melvin Chervitz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fever thermometer
    Patent number: 4509533
    Abstract: A fever thermometer having an adhesive on one side of a flexible backing web for adhering the web to the skin of the human body, the web being provided with a background color, and having a plurality of numerical display areas on the opposite side of the web, each numerical display area including an encapsulated liquid crystal indicator, the color spectrum of each liquid crystal indicator being responsive to a different specific temperature range, and the liquid crystal indicators being initially of a color to complement the background color so as to be subtantially invisible at temperatures below the minimum threshold temperature of the indicator having the lowest temperature range.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: April 9, 1985
    Inventor: Melvin Chervitz
  • Fever thermometer
    Patent number: 4333477
    Abstract: A fever thermometer having an adhesive on one side of a flexible backing web for adhering the web to the skin of the human body, the web being provided with a background color, and having a plurality of numerical display areas on the opposite side of the web, each numerical display area including an encapsulated liquid crystal indicator, the color spectrum of each liquid crystal indicator being responsive to a different specific temperature range, and the liquid crystal indicators being initially of a color to compliment the background color so as to be substantially invisible at temperatures below the minimum threshold temperature of the indicator having the lowest temperature range.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: June 8, 1982
    Inventor: Melvin Chervitz
  • Fever thermometer
    Patent number: 4232684
    Abstract: A fever thermometer having an adhesive on one side of a flexible backing web for adhering the web to the skin of the human body, the web being provided with a background color, and having a plurality of numerical display areas on the opposite side of the web, each numerical display area including an encapsulated liquid crystal indicator, the color spectrum of each liquid crystal indicator being responsive to a different specific temperature range, and the liquid crystal indicators being initially of a color to compliment the background color so as to be substantially invisible at temperatures below the minimum threshold temperature of the indicator having the lowest temperature range.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: November 11, 1980
    Inventor: Melvin Chervitz